CN106163072B - A kind of isochronous cyclotron radio frequency cavity - Google Patents
A kind of isochronous cyclotron radio frequency cavity Download PDFInfo
- Publication number
- CN106163072B CN106163072B CN201610615111.2A CN201610615111A CN106163072B CN 106163072 B CN106163072 B CN 106163072B CN 201610615111 A CN201610615111 A CN 201610615111A CN 106163072 B CN106163072 B CN 106163072B
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- snack
- outer conductor
- interior bar
- radio frequency
- screw
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
Abstract
The present invention relates to a kind of isochronous cyclotron radio frequency cavity, the cavity includes：D plates, interior bar and outer conductor cylinder have a snack A, have a snack B, outer conductor；The D plates by screw A with have a snack A and interior bar and outer conductor cylinder is connected and fixed, the interior bar and outer conductor cylinder are connected and fixed by screw B with B, outer conductor and accelerator main magnet is had a snack, to which radio frequency cavity to be fastened on accelerator main magnet.The result obtained by measuring cavity resonant frequency, repairing has a snack A and has a snack the thickness of B, D plates are made to change with interior bar short-circuit end distance L, to change cavity radio frequency resonant tank inductance value, so that cavity resonant frequency is changed correspondingly and is reached required frequency, completes having a snack for isochronous cyclotron radio frequency cavity resonant frequency.The radio frequency cavity resonant frequency shimming method is easy to operate, easy to implement, and the radio-frequency cavity body running based on this method design is reliable and stable.
Description
Technical field
The invention belongs to particle accelerator technical fields, and in particular to a kind of isochronous cyclotron radio frequency cavity and its
Resonant frequency shimming method.
Background technology
The particle acceleration voltage of isochronous cyclotron generally has oneself fixed working frequency, completes accelerator master
After magnetic-field measurement, which decides, and required working frequency has difference with Theoretical Design cavity resonant frequency at this time
Not, and when cavity physical model is converted into machinable mechanical model and when cavity fabricates deviation can be all generated, it is above-mentioned
The resonant frequency that reason is surveyed when cavity can all be made to complete processing has difference with required working frequency, therefore needs to cavity resonant frequency
Rate is had a snack, and keeps cavity resonant frequency consistent with required working frequency.
The traditional method for changing cavity resonant frequency is to make interior bar short-circuit end (region between Φ A and Φ B in attached drawing 1)
Position adjustable structure will generally in interior bar short-circuit end endoporus and outer circle position using reed, metal ball or elastic clasping structure
Interior bar links together with outer conductor cylinder, but this junction linear electric current density is high, and radio-frequency current transmission defers to skin effect
It answers, current convergence is transmitted in conductive surface, therefore above-mentioned connection type poor reliability, complicated, fabricates difficulty and cost
Height, long-play easily cause junction and burn damage.For these reasons, urgent need one kind is simple in structure, manufacturing cost is low, can
Above-mentioned ask is solved by property height, the isochronous cyclotron radio frequency cavity of stable equipment operation and its resonant frequency shimming method
Topic.
Invention content
To achieve the above object, a kind of isochronous cyclotron radio frequency cavity of present invention offer and its resonant frequency are had a snack
Method, to overcome above-mentioned technological deficiency.
The present invention provides a kind of isochronous cyclotron radio frequency cavity, including：D plates, interior bar and outer conductor cylinder are had a snack
Pad A, B, outer conductor, accelerator main magnet, screw A, screw B are had a snack；
The interior bar and outer conductor cylinder include：Interior bar short-circuit end, outer conductor cylinder, outer conductor cylinder end flanges, interior bar,
Interior bar open end, the D plates by screw A with have a snack A and interior bar and outer conductor cylinder is connected and fixed, pass through screw
B by the interior bar and outer conductor cylinder, have a snack B, outer conductor and accelerator main magnet and be connected and fixed, to by radio frequency
Cavity is fastened on accelerator main magnet.
There are a determining deviations between the D plates week and outer conductor.
Preferably, A and D plates and the interior bar open end had a snack carries out good be connected and fixed.Also it can pass through one group of spiral shell
Nail will have a snack A and D plates progress it is good be connected and fixed, by another group of screw will have a snack A and interior bar open end progress it is good
Good is connected and fixed, and is connected and fixed to realize that above-mentioned three is good.
Preferably, the B that has a snack carries out good be connected and fixed with outer conductor and outer conductor cylinder end flanges.Also can lead to
Cross one group of screw will have a snack B and outer conductor cylinder end flanges carry out it is good be connected and fixed, will be had a snack by another group of screw
Pad B and outer conductor progress is good to be connected and fixed, and is fastened on simultaneously on accelerator main magnet, to realize above-mentioned have a snack
Pad B and outer conductor and outer conductor cylinder end flanges are good is connected and fixed.
Preferably, the thickness X 1 for having a snack A and the thickness X 2 for having a snack B can carry out repairing processing and acknowledgment copy more
It changes.
Preferably, when being repaired with the thickness X 2 for having a snack B to the thickness X 1 for having a snack A, thickness X 1 and X2
And it is constant, i.e.,：X1+X2=constants.
Preferably, under the premise of not changing distance D between D plates and outer conductor, to the thickness X 1 for having a snack A and pad
The thickness X 2 of blow-out patch B is repaired so that the distance between D plates and interior bar short-circuit end L are changed, to change cavity
Rf resonant circuit inductance value realizes having a snack for radio frequency cavity resonant frequency.
Compared with the prior art, the beneficial effects of the present invention are：A kind of isochronous cyclotron radio-frequency cavity of the present invention
Body and its resonant frequency shimming method is easy to operate, easy to implement and simple in structure, manufacturing cost is low, is designed based on this method
Radio-frequency cavity body running it is reliable and stable.
Description of the drawings
Fig. 1 is a kind of diagrammatic cross-section of isochronous cyclotron radio frequency cavity of the present invention；
Fig. 2 is the isometric side half-section diagram of the present invention；
Fig. 3 is the isometric side schematic diagram of the present invention.
Fig. 4 is the detailed construction enlarged diagram of interior bar and outer conductor cylinder.
Specific implementation mode
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one：
As shown in Figs 1-4, a kind of isochronous cyclotron radio frequency cavity of the invention, including：It D plates 1, interior bar and leads outside
Body cylinder 2 has a snack A3, has a snack B4, outer conductor 5, accelerator main magnet 6, screw A7, screw B8.
The interior bar and outer conductor cylinder 2 include：Interior bar short-circuit end 201, outer conductor cylinder 202, outer conductor cylinder hold-carrying
Orchid 203, interior bar 204, interior bar open end 205., can be by shown in attached drawing 1,2 in structure, interior bar and outer conductor cylinder 2 are one,
Interior bar short-circuit end 201, outer conductor cylinder 202, outer conductor cylinder end flanges 203, interior bar 204 and interior bar open end 205 are made
One；In view of facilitating processing and manufacturing, also interior bar and outer conductor cylinder 2 can be divided into two parts, by interior bar short-circuit end 201 in figure
It is split into two halves, half makes one with interior bar 204 and interior bar open end 205, the other half justifies with outer conductor cylinder 202 and outer conductor
Cylinder end flanges 203 make one, are finally connected by screw two halves interior bar short-circuit end 201 and are fixed together.
The D plates 1 by screw A7 with have a snack A3 and interior bar and outer conductor cylinder 2 is connected and fixed, it is described in
Bar and outer conductor cylinder 2 are connected and fixed by screw B8 with B4, outer conductor 5 and accelerator main magnet 6 is had a snack, to
Radio frequency cavity is fastened on accelerator main magnet 6.
There are a determining deviations between 1 week of the D plates and outer conductor 5.
By measuring that cavity resonant frequency obtains as a result, repairing has a snack and A and has a snack the thickness of B, make D plates and interior bar
The distance L of short-circuit end changes, to change cavity radio frequency resonant tank inductance value, make cavity resonant frequency change correspondingly and
Reach required frequency, completes having a snack for isochronous cyclotron radio frequency cavity resonant frequency.To the thickness for having a snack A
When X1 and the thickness X 2 for having a snack B are repaired, thickness X 1 and X2's and constant, i.e.,：X1+X2=constants.
Embodiment two
Embodiment second is that embodiment one remodeling, difference lies in：Embodiment one is will to have a snack A and D by one group of screw A
Plate and interior bar open end carry out it is good be connected and fixed, embodiment carries out well second is that will have a snack A by one group of screw with D plates
Be connected and fixed, by another group of screw will have a snack A and interior bar open end carry out it is good be connected and fixed, it is above-mentioned to realize
Three is good to be connected and fixed.Embodiment one is will to have a snack B and outer conductor and outer conductor cylinder end flanges by one group of screw B
Carry out it is good be connected and fixed, embodiment second is that by one group of screw will have a snack B and outer conductor cylinder end flanges carry out it is good
Be connected and fixed, by another group of screw will have a snack B and outer conductor carry out it is good be connected and fixed, and be fastened on simultaneously
On accelerator main magnet, above-mentioned B and outer conductor are had a snack and outer conductor cylinder end flanges are good is connected and fixed to realize.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.If in this way, belonging to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention
Within enclosing, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of isochronous cyclotron radio frequency cavity, it is characterised in that：
The cavity includes：D plates (1), interior bar and outer conductor cylinder (2), have a snack A (3), have a snack B (4), outer conductor (5),
Accelerator main magnet (6), screw A (7), screw B (8)；
The D plates (1) by screw A (7) with have a snack A (3) and interior bar and outer conductor cylinder (2) is connected and fixed, lead to
Cross screw B (8) by the interior bar and outer conductor cylinder (2), have a snack B (4), outer conductor (5) and accelerator main magnet (6) connect
It is fixed together, to which radio frequency cavity to be fastened on accelerator main magnet (6)；
The interior bar and outer conductor cylinder (2) include：Interior bar short-circuit end (201), outer conductor cylinder (202), outer conductor cylinder end
Flange (203), interior bar (204), interior bar open end (205)；Above-mentioned interior bar and outer conductor cylinder (2) are integrally formed, or will
Interior bar and outer conductor cylinder (2) are divided into two parts, and interior bar short-circuit end (201) is split into two halves, wherein half and interior bar (204) and
Interior bar open end (205) is integrally formed, the other half is then integrated with outer conductor cylinder (202) and outer conductor cylinder end flanges (203)
Two halves interior bar short-circuit end (201), is finally connected by screw and is fixed together by molding.
2. isochronous cyclotron radio frequency cavity as described in claim 1, it is characterised in that：
There are spacing between D plates (1) week and outer conductor (5).
3. isochronous cyclotron radio frequency cavity as described in claim 1, it is characterised in that：
The A (3) that has a snack is attached fixation with D plates (1) and interior bar open end (205).
4. isochronous cyclotron radio frequency cavity as described in claim 1, it is characterised in that：
The B (4) that has a snack is attached fixation with outer conductor (5) and outer conductor cylinder end flanges (203).
5. isochronous cyclotron radio frequency cavity as described in claim 1, it is characterised in that：
The thickness for having a snack A (3) and the thickness for having a snack B (4) can carry out repairing processing and be replaced with acknowledgment copy.
6. isochronous cyclotron radio frequency cavity as claimed in claim 5, it is characterised in that：
To the thickness X 1 for having a snack A (3) and when having a snack the thickness X 2 of B (4) and repairing, thickness X 1 and X2 with not
Become.
7. isochronous cyclotron radio frequency cavity as described in claim 1, it is characterised in that：
Under the premise of not changing distance between D plates (1) and outer conductor (5), to the thickness for having a snack A (3) and B is had a snack
(4) thickness is repaired so that the distance between D plates (1) and interior bar short-circuit end (201) L change.
8. a kind of isochronous cyclotron radio frequency cavity, it is characterised in that：
The cavity includes：D plates (1), interior bar and outer conductor cylinder (2), have a snack A (3), have a snack B (4), outer conductor (5),
Accelerator main magnet (6), screw A (7), screw B (8)；
To have a snack A (3) and D plates (1) by one group of screw and be attached fixation, by another group of screw will have a snack A (3) and
Interior bar open end (205) is attached fixation；
B will be had a snack by one group of screw and is attached fixation with outer conductor cylinder end flanges, will be had a snack by another group of screw
Pad B (4) is attached fixation with outer conductor (5), and is fastened on simultaneously on accelerator main magnet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615111.2A CN106163072B (en) | 2016-07-29 | 2016-07-29 | A kind of isochronous cyclotron radio frequency cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615111.2A CN106163072B (en) | 2016-07-29 | 2016-07-29 | A kind of isochronous cyclotron radio frequency cavity |
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| Publication Number | Publication Date |
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| CN106163072A CN106163072A (en) | 2016-11-23 |
| CN106163072B true CN106163072B (en) | 2018-08-07 |
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| CN201610615111.2A Active CN106163072B (en) | 2016-07-29 | 2016-07-29 | A kind of isochronous cyclotron radio frequency cavity |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107466152B (en) * | 2017-07-25 | 2019-09-20 | 中国科学院高能物理研究所 | Multipole magnet and its magnetic field harmonics shimming method |
| CN110740561B (en) * | 2018-07-21 | 2021-07-30 | 中国原子能科学研究院 | Edge field shimming method for leading out magnetic channel element in superconducting cyclotron |
| JP7397622B2 (en) | 2019-10-29 | 2023-12-13 | 住友重機械工業株式会社 | cavity and stem |
| CN111526656A (en) * | 2020-04-07 | 2020-08-11 | 哈尔滨工业大学 | Current control ultra-wideband cyclotron high-frequency cavity |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10275700A (en) * | 1997-03-28 | 1998-10-13 | Mitsubishi Electric Corp | Cavity resonator for accelerating particle |
| JP2000299200A (en) * | 1999-04-16 | 2000-10-24 | Mitsubishi Electric Corp | Frequency modulator and cyclotron provided with same |
| EP2410823B1 (en) * | 2010-07-22 | 2012-11-28 | Ion Beam Applications | Cyclotron for accelerating at least two kinds of particles |
| CN103716977A (en) * | 2014-01-06 | 2014-04-09 | 中国原子能科学研究院 | High-mechanical-strength high-frequency resonant cavity |
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| CN106163072A (en) | 2016-11-23 |
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